Hangfire.Oracle.Core is based on Hangfire.MySqlStorage(https://github.com/arnoldasgudas/Hangfire.MySqlStorage)

I fix some bug and support .net standard 2.0

Oracle storage implementation of Hangfire - fire-and-forget, delayed and recurring tasks runner for .NET. Scalable and reliable background job runner. Supports multiple servers, CPU and I/O intensive, long-running and short-running jobs.

Some features of Oracle storage implementation is under development!

Install Oracle

Run the following command in the NuGet Package Manager console to install Hangfire.Oracle.Core:

Install-Package Hangfire.Oracle.Core

Use one the following ways to initialize OracleStorage:

• Create new instance of OracleStorage with connection string constructor parameter and pass it to Configuration with UseStorage method:

  GlobalConfiguration.Configuration.UseStorage(
    new OracleStorage(connectionString));

• Alternatively one or more options can be passed as a parameter to OracleStorage:

GlobalConfiguration.Configuration.UseStorage(
    new OracleStorage(
        connectionString, 
        new OracleStorageOptions
        {
            TransactionIsolationLevel = IsolationLevel.ReadCommitted,
            QueuePollInterval = TimeSpan.FromSeconds(15),
            JobExpirationCheckInterval = TimeSpan.FromHours(1),
            CountersAggregateInterval = TimeSpan.FromMinutes(5),
            PrepareSchemaIfNecessary = true,
            DashboardJobListLimit = 50000,
            TransactionTimeout = TimeSpan.FromMinutes(1),
            SchemaName = "HANGFIRE"
        }));

• With version 1.1 you can provide your own connection factory.

GlobalConfiguration.Configuration.UseStorage(
    new OracleStorage(
        () => new OracleConnection(connectionString), 
        new OracleStorageOptions
        {
            SchemaName = "HANGFIRE"
        }));

Description of optional parameters:

• TransactionIsolationLevel - transaction isolation level. Default is read committed. Didn't test with other options!
• QueuePollInterval - job queue polling interval. Default is 15 seconds.
• JobExpirationCheckInterval - job expiration check interval (manages expired records). Default is 1 hour.
• CountersAggregateInterval - interval to aggregate counter. Default is 5 minutes.
• PrepareSchemaIfNecessary - if set to true, it creates database tables. Default is true.
• DashboardJobListLimit - dashboard job list limit. Default is 50000.
• TransactionTimeout - transaction timeout. Default is 1 minute.
• SchemaName - schema name. Default is empty

Number of opened connections depends on Hangfire worker count. You can limit worker count by setting WorkerCount property value in BackgroundJobServerOptions:

app.UseHangfireServer(
   new BackgroundJobServerOptions
   {
      WorkerCount = 1
   });

More info: http://hangfire.io/features.html#concurrency-level-control

Hangfire provides a dashboard More info: Hangfire Overview

Please use Visual Studio or any other tool of your choice to build the solution